[Tropical] Tropical Weather Discussion

EMWIN Server emwin at nashvilleweather.net
Fri Apr 1 13:05:42 CDT 2011


AXNT20 KNHC 011805
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
205 PM EDT FRI APR 01 2011

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTION OF
SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE
EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE
IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER OBSERVATIONS...AND
RADAR.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 1745 UTC.

...THE ITCZ...

FROM THE LIBERIA COAST NEAR 5N10W TO 2N20W...TO THE EQUATOR
ALONG 38W...INTO NORTHEASTERN BRAZIL NEAR 1S48W. ISOLATED
MODERATE RAINSHOWERS TO LOCALLY STRONG THUNDERSTORMS ARE
TO THE SOUTH OF 6N TO THE EAST OF 54W...INCLUDING ACROSS
THE NORTHERN HALF OF FRENCH GUIANA.

...DISCUSSION...

FROM THE ATLANTIC OCEAN THAT IS TO THE WEST OF 70W
INTO THE GULF OF MEXICO...
A MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES THROUGH THE
ATLANTIC OCEAN NEAR 32N76W TO THE NORTHERN BAHAMAS TO
SOUTHEASTERN FLORIDA. THIS TROUGH SUPPORTS THE CURRENT
ATLANTIC OCEAN-TO-GULF OF MEXICO COLD FRONT THAT PASSES
THROUGH 32N73W TO THE SOUTHEASTERN FLORIDA COAST ALONG
26N/27N...INTO THE GULF OF MEXICO NEAR 24N86W. MODERATE
RAINSHOWERS ARE TO THE NORTH OF 28N BETWEEN 67W AND 73W.
ISOLATED MODERATE RAINSHOWERS ARE WITHIN 15 NM TO 30 NM
ON EITHER SIDE OF 28N73W...26N78W IN THE NORTHERN BAHAMAS...
ACROSS SOUTHERN FLORIDA TO 24N84W IN THE SOUTHEASTERN GULF
OF MEXICO. THE GULF OF MEXICO PRECIPITATION HAS BEEN WEAKENING
WITH TIME.

THE CARIBBEAN SEA...
RAINSHOWERS ARE POSSIBLE TO THE EAST OF 67W...AND TO THE NORTH
OF 11N BETWEEN 72W AND 82W. THE PRECIPITATION MAY BE OCCURRING
IN THESE AREAS...IN LINES OF LOW CLOUDS THAT ARE MOVING WITH THE
SURFACE TRADEWIND FLOW. BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW
COVERS THE AREA IN GENERAL.

THE ATLANTIC OCEAN THAT IS TO THE EAST OF 70W...
THE SOUTHERNMOST POINT OF AN UPPER LEVEL TROUGH REACHES THROUGH
31N25W. THIS TROUGH SUPPORTS THE COLD FRONT THAT PASSES THROUGH
32N24W TO 27N37W. SURFACE ANTICYCLONIC WIND FLOW MOVES AROUND
A 1025 MB HIGH PRESSURE CENTER THAT IS NEAR 32N37W...TO THE
NORTH OF THE COLD FRONT. BROAD SURFACE ANTICYCLONIC WIND FLOW
COVERS THE REST OF THE ATLANTIC OCEAN...AWAY FROM THE COLD
FRONT...TO THE SOUTH OF 32N BETWEEN AFRICA AND 70W.

FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
MT







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